Fire Damper for Building Venting and Smoke-venting System; (HS: 8481 , 8481); (ICS: 13.220.50)
National Standards of the P.R.C, Fire Damper for Building Venting and Smoke-venting System (29 page(s), in Chinese)
This standard specifies the terms and definitions, classification, materials, accessories, external appearance, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of fire and smoke exhaust devices such as fire damper, combination fire and smoke damper, smoke damper, natural smoke outlet, constant closed ventilation valve.
This standard applies to the fire dampers installed in the ventilation and air conditioning systems of industrial and civil buildings and underground buildings, the combination fire and smoke damper and smoke damper installed in the mechanical smoke exhaust system, and the natural smoke outlet used in the natural smoke exhaust system, and the constant closed ventilation valve in the mechanical pressurized air supply system. The fire valves used in other occasions can be carried out by reference.